Supertech Valve Spring and Retainer Kit - 11-16 Honda CR-Z

Regular price $553.00 USD Sale price $553.00 USD Regular price $692.00 USD
Sale 20.09% $139.00 USD (20.09%)
Special order - Ships in 8+ weeks
SKU: sptSPRK-H2416
Product Description
The Supertech Valve Spring and Retainer Kit comes with the full set of valve springs and valve spring retainers for 1 LEA motor.

Valve Springs:
The Valve Springs are designed and manufactured to do more than achieving the required pressure and lift. They ensure natural harmonics of the spring for each application and are manufactured using superior materials in super-clean chrome silicon vanadium alloy. To top it off the springs are heat treated, stress relieved and shoot peened to help improve the fatigue life of the spring.

The Supertech retainers are CNC machined and manufactured from high strength and hardened aerospace certified titanium alloy. Designed to add strength while offering weight reduction, all Supertech titanium retainers are finished to precise tolerances.

  • Honda CR-Z [ZF1 / ZF2] (2011, 2012, 2013, 2014, 2015, 2016)


  • Dual Valve Springs designed specifically for the CR-Z
  • Springs made from a Chrome Silicon Vanadium alloy
  • Titanium alloy retainers replace OE counterpart
  • CNC machined to precise tolerances

Extended Information

  • Type: Engine Spring Valve Kit
  • Included Parts: Valve Springs (x16) & Titanium Retainers (x16)
  • Spring Type: Single
  • Spring OD: 23.70 [mm]
  • Spring ID: 16.30 [mm]
  • Intake Pressure (Seat): 61 lbs @ 40.20 mm
  • Exhaust Pressure (Seat): 56 lbs @ 40.60 mm
  • Intake Pressure (Open): 164 lbs @ 10 mm
  • Exhaust Pressure (Open): 160 lbs @ 10 mm
  • Max Lift: 15.3 [mm]
  • Coil Bind: 24.90 [mm]
  • RATE: 9.90 [lbs/mm]
  • Engine: LEA
  • Chassis: ZF1 / ZF2

To provide faster delivery and turn around time; Kami Speed ships products out from different warehouses throughout the United States. Usually averaging 1-4 business days for processing prior to shipping.

Depending on the package, we ship using different carriers according to the item's location, content, and size.

Freight truck & international items, will require up to 7 business days to ship due to size and logistics.

All orders made after 3:00pm ET will be shipped or processed the next business day.

Unless otherwise noted as "In Stock" or exact ETA. Special Order items have an ETA of 5+ weeks.

Orders over $500 will ship insured and over $1,000 with signature and insurance in order to guarantee delivery. Orders over $1000 may not be able to ship to a different address not listed as the billing address or confirm payment address from the form of payment used. Orders with suite numbers, different billing, or apartment numbers will require signature if valued over $100.

All international orders outside of the USA are subject to duties and taxes fees per your countries jurisdiction and determined by customs.
Kami Speed serves the right to ship using an alternative method if we see it fit, in order to expedite shipping and reduce your rate depending on product value.

Processing and logistics on in stock international orders can take up to 7 business days to process & ship.

In stock, non special order items can be returned within 30 days of the product arriving to your house or place of work.
Returns will NOT be accepted on Clearance Items, Final Sales, Special Orders, Opened, Installed, Incomplete, or Otherwise Used Products. In order to initiate a return, an RMA number must be requested and approved via e-mail. All returns will be subject to a 20% restocking fee minus complete shipping cost (roundtrip).

Any processed orders that have not shipped will incur a 6% cancelation refund fee unless the product was not available to ship within a timely manner. No fee will be incurred if used as store credit.

For complete details on our return policy, please see our Help and FAQ link under HELPFUL INFO.

WARNING: Operating, servicing and maintaining a passenger vehicle or off-highway motor vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to